BS 7190:1989
Current
The latest, up-to-date edition.
Method for assessing thermal performance of low temperature hot water boilers using a test rig
Hardcopy , PDF
English
31-12-1989
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Foreword
Committees responsible
Method
1. Scope
2. Definitions
3. Test facilities
4. Instrumentation and measurements
5. Test fuels
6. Installation and adjustment
7. Test preparation
8. Test conditions
9. Test duration
10. Test operation
11. Calculations
12. Report
Appendices
A. Report data
B. Test rig
Tables
1. Measurement tolerances
2. British Standards for sampling and analysis of
fuels
3. Symbols, definitions and units
Figures
1. Test rigs for hot water boilers operating below
a temperature of 100 deg C
2. Test flues
3. Equipment for determination of water-side resistance
4. Measurement system for distillate fuel oils
Boilers for central heating or hot water supply fired with solid, liquid or gaseous fuels.
| Committee |
RHE/24
|
| DevelopmentNote |
Supersedes BS DD65-1(1979) & BS DD65-2(1982) (12/2004) Supersedes 88/70991 DC. (09/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
1.1 This British Standard describes a procedure for assessing the thermal performance of low temperature hot water boilers which are intended for central heating or indirect hot water supply and which are fired with solid, liquid or gaseous fuels. The thermal efficiency is obtained by the direct method of test and is established to within a tolerance of ± 2 % points2). Flue gas losses and loss due to combustibles in ash, where applicable, are determined by measurement. Surface heat losses and other unmeasured losses are derived by difference. Procedures are also included to determine the associated characteristics of water-side resistance and gas-side resistance.
1.2 This standard applies to boilers designed to operate at flow temperatures not exceeding 100 °C, with rated heat output between 44 kW and 600 kW when used with one or more of the following fuels:
- smokeless solid fuels, e.g. coke or anthracite, fired by means of automatic combustion appliances;
- bituminous coal fired by means of mechanical stokers;
- gaseous fuels of the 2nd and 3rd families (see BS 4947);
and with rated heat output between 300 kW and 600 kW when used with liquid fuels of the classes specified in BS 2869.
1.3 This standard does not apply to steam boilers or to boilers pressurized by steam.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 779:1989 | Specification for cast iron boilers for central heating and indirect hot water supply (rated output 44 kW and above) |
| BS 855:1990 | Specification for welded steel boilers for central heating and indirect hot water supply (rated output 44 kW to 3 MW) |
| BS 3156-3:1968 | Methods for the analysis of fuel gases. Combustion characteristics |
| BS 845-1:1987 | Methods for assessing thermal performance of boilers for steam, hot water and high temperature heat transfer fluids Concise procedure |
| BS 3156-1:1968 | Analysis of fuel gases General analysis |
| BS 3156-4:1969 | Analysis of fuel gases Gas chromatographic analysis |
| BS 845-2:1987 | Methods for assessing thermal performance of boilers for steam, hot water and high temperature heat transfer fluids. Comprehensive procedure |
| BS 526:1961 | Definitions of the calorific value of fuels |
| BS 4876:1984 | Specification for performance requirements for domestic flued oil burning appliances (including test procedures) |
| BS 2000-12(1982) : 1982 | METHODS OF TEST FOR PETROLEUM AND ITS PRODUCTS - HEAT OF COMBUSTION OF LIQUID HYDROCARBON FUELS |
| BS 1017:1942 | Methods for sampling of coal and coke |
| BS 3804-1:1964 | Methods for the determination of the calorific value of fuel gases Non-recording methods |
| BS 2869:1983 | Specification for fuel oils for oil engines and burners for non-marine use |
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